Zhone IMACS 8000, Руководство пользователя

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21-20 Server Cards
Model No.
Running Head
Introduction IPR*4 Router Card
IPR*4PPP Configuration
21.8 Introduction
The IPR*4 card provides a PPP backbone for customers to extend their communications,
command and control capability in an IMACS network. This card extends the capability of the
IMACS shelf to expand the range of control in the customers private network.
The IPR*4 card introduces the IMACS platform with the first PPP synchronous standard
implementation of PPP, RFC 1661.
In order to provide the Ethernet to PPP inter-working capability, the IPR*4 10/100BT card has
four modular RJ-45 interface jacks on the faceplate.
The software release level in the card determines the cards capabilities. The following
illustrates the current and future direction of this card, and appropriate display names.
The IPR*4 10/100BT Cards are IP routers that route packets based on IP destination
addresses. IPR*4 routes IP datagrams between Ethernet and PPP framed T1 or E1s.
IPR*4 will support SNMP for Ethernet, IP and Routing MIBs. It uses the standard Ethernet
encapsulation, utilizing 14 bytes Ethernet Header: Source Ethernet Address (6 bytes),
Destination Ethernet Address (6 bytes), and a Protocol Type (2 bytes). The IPR*4 card
supports RIP (Routing Information Protocol, RFC 1058) as well as RIPv2, used for
dynamically discovering IP routes from adjacent IP routers.
The WAN interface is standard encapsulation of IP datagrams over a PPP link.
The IMACS IPR*4 card does not support PPP authentication. The IPR*4 card is not designed
to be a general purpose enterprise router, but rather is designed to extend the IMACS network
of command and control applications contained within the customers T1/E1 network.
Table 21-3. IPR*4 PPP option
Card Display Firmware
Faceplate
Ethernet Jacks
Transport
Links
High Speed
Ports
IPR*4 PPP HS 1.2.x
Individually
Addressable
8 PPP Yes, 8
IPR*4HDLC 2.0.x
Individually
Addressable
128 HDLC Yes, 4